What percentage of Earth's atmosphere is made up of nitrogen gas?

Understanding Earth's Atmosphere and Ocean Chemistry

Interactive Video
•
Science, Biology, Chemistry
•
9th - 12th Grade
•
Hard

Mia Campbell
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
78%
0.04%
21%
50%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process is responsible for the absorption of 25% of atmospheric carbon dioxide by land plants?
Respiration
Photosynthesis
Decomposition
Combustion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when carbon dioxide dissolves in water?
It forms nitrogen gas
It becomes aqueous carbon dioxide
It turns into oxygen
It evaporates
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Le Chatelier's principle, what happens when the concentration of carbon dioxide gas is increased in a system?
The system explodes
The reaction moves forward
The system remains unchanged
The reaction moves backward
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main cause of ocean acidification?
Decrease in atmospheric oxygen
Increase in atmospheric nitrogen
Release of methane gas
Uptake of atmospheric carbon dioxide
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increased acidity in oceans affect shell-building marine animals?
It makes their shells brittle and thin
It has no effect on their shells
It makes their shells more colorful
It strengthens their shells
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the pH level of the ocean before the industrial revolution?
9.0
6.5
8.2
7.0
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